I believe your 91 if it has an automatic transmission has an electronic speedo that feeds into the computer. Also the anti lock brake system feeds into and is activated by the computer. You had better think this out a little further before ripping everything out. Depending on where you live you may not be able to get the truck inspected if you rip out the computer.

Vince

Thanks for pointing that out. As far as the transmission goes, yes, its a 700r4; however I believe there is a trans controller I can buy so that the 700 will work with a carbureted engine. Also I don't know how its hooked up exactly, but as of right now its working with the engine somehow. Now the ABS I have not though about, nor do I know how to go about that problem.